Most of the Facebook users who own an iPhone, they use Facebook Application for easier connection and social networking experience.
Recently some users realized that the phone numbers stored on the phone are uploaded to Facebook, without us knowing about it.
to check this, Go to the top right of the Facebook screen, click on ACCOUNT, click on EDIT FRIENDS, on the left side of screen click CONTACTS.
You will see all phone numbers from your phone (FB friends or not) are published. TO REMOVE, go to the right column, click on this page which will take you the page shown below:
Click on REMOVE to remove the uploaded contacts.
Also you need to disable the SYNC option on your iPhone by going to Facebook App, as shown below:
App bug overrides user privacy settings
Facebook has leaked access to millions of users’ photographs, profiles and other personal information because of a years-old bug that overrides individual privacy settings, researchers from Symantec said.
According to new research completed by Dan Zarrella, almost 1 in 3 posts to the site come from mobile devices.
The research is based on a random sampling of more than 70,000 Facebook posts, large enough to generate a 99 percent confidence interval with a plus or minus .5 percent margin of error. In other words, this is likely to be fairly accurate.
Most surprising from the analysis was that the vast majority of these updates came through m.facebook.com, not through smartphone devices (although iPhone and Android accounted for close to nine percent total).